ARM: dts: AM33XX: Add MMC support and documentation
Adds AM33XX MMC support for am335x-bone, am335x-evm and am335x-evmsk boards.
Also added is the DMA binding definitions based on the generic DMA request
binding.
Additional changes made to DTS:
* Interrupt, reg and compatible properties added
* ti,needs-special-hs-handling added
Signed-off-by: Matt Porter <mporter@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 7993c48..d5f43fe 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -9,3 +9,14 @@
#include "am33xx.dtsi"
#include "am335x-bone-common.dtsi"
+
+&ldo3_reg {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+};
+
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&ldo3_reg>;
+};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index e8ec875..bc4a69d 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -477,6 +477,8 @@
};
vmmc_reg: regulator@12 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
};
};
@@ -517,3 +519,8 @@
ti,adc-channels = <4 5 6 7>;
};
};
+
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&vmmc_reg>;
+};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 4f339fa..55fd194 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -393,6 +393,8 @@
};
vmmc_reg: regulator@12 {
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
regulator-always-on;
};
};
@@ -419,3 +421,8 @@
phy_id = <&davinci_mdio>, <1>;
phy-mode = "rgmii-txid";
};
+
+&mmc1 {
+ status = "okay";
+ vmmc-supply = <&vmmc_reg>;
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 9cd60bf5..553adc6 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -245,6 +245,44 @@
status = "disabled";
};
+ mmc1: mmc@48060000 {
+ compatible = "ti,omap4-hsmmc";
+ ti,hwmods = "mmc1";
+ ti,dual-volt;
+ ti,needs-special-reset;
+ ti,needs-special-hs-handling;
+ dmas = <&edma 24
+ &edma 25>;
+ dma-names = "tx", "rx";
+ interrupts = <64>;
+ interrupt-parent = <&intc>;
+ reg = <0x48060000 0x1000>;
+ status = "disabled";
+ };
+
+ mmc2: mmc@481d8000 {
+ compatible = "ti,omap4-hsmmc";
+ ti,hwmods = "mmc2";
+ ti,needs-special-reset;
+ dmas = <&edma 2
+ &edma 3>;
+ dma-names = "tx", "rx";
+ interrupts = <28>;
+ interrupt-parent = <&intc>;
+ reg = <0x481d8000 0x1000>;
+ status = "disabled";
+ };
+
+ mmc3: mmc@47810000 {
+ compatible = "ti,omap4-hsmmc";
+ ti,hwmods = "mmc3";
+ ti,needs-special-reset;
+ interrupts = <29>;
+ interrupt-parent = <&intc>;
+ reg = <0x47810000 0x1000>;
+ status = "disabled";
+ };
+
wdt2: wdt@44e35000 {
compatible = "ti,omap3-wdt";
ti,hwmods = "wd_timer2";